Relationship between self-reported low productivity and overtime working.
D000328:Adult; D004526:Efficiency / Q000502:physiology; D005221:Fatigue / Q000523:psychology*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D009784:Occupational Diseases / Q000523:psychology*; D016272:Occupational Health; D018582:Sick Leave / Q000639:trends; D014938:Work Capacity Evaluation; D014940:Work Schedule Tolerance / Q000502:physiology / Q000523:psychology*